West of Phoenix near Buckeye, the Arizona Cycle Park has 4 tracks built in a 40 acre pit. The four tracks are the National Track, the Quad Track, the 50/PW Track and the Oval Track. The National Track is a coarse sand with elevation changes built into the sides of the pit.
To reach the dirt biking at Arizona Cycle Park from Phoenix, follow US10 West to Exit #112 (Hwy 85 south), Take Hwy 85 South 14 miles to West Riggs Road. There is a right turn only lane just past mile marker 140. Go West for 1/2 mile to track... Please Maximum 25MPH.
Directions from Tucson: I-10 West to I-8 West, Take I-8 West to Exit 119 (Butterfield Trail/Hwy 85 North), Take Hwy 85 North to West Riggs Road which is just north of mile marker 139. Sorry there is no left turn lane. Go West for 1/2 mile to track.
Overall, Arizona Cycle Park is the 29th most popular dirt bike trail of all 46 dirt biking rides in Arizona.